Figure 6.

Bond and hydrodynamic forces on a rolling cell as a function of time for different values of the cytoplasmic viscosity. (Left panel) Drag force (upper curve, solid circles) and the translational (x-) component of the bond force (lower curve, open squares). (Right panel) Lift force (upper curve, solid circles) and the normal (z-) component of the bond force (lower curve, open squares). The bond force drops to zero (open circle) and the drag and lift forces decrease to very small values when the cell detaches.